Intel Xeon w7 3455 's Advantages
Released 10 years and 3 months late
Higher specification of memory (DDR5-4800 vs DDR3-1866)
Newer PCIe version (5 vs 2)
Larger L3 cache size (67.5MB vs 8MB)
Opteron 6348 's Advantages
Higher base frequency (2.8GHz vs 2.5GHz)
Lower TDP (115W vs 270W)